MIT invention uses solar power to make ocean water drinkable

USAID recently announced the winners of the Desal Prize, part of a competition to see who could create an affordable desalination solution for developing countries. The idea was to create a system that could remove salt from water and meet three criteria: it had to be cost-effective, environmentally sustainable, and energy efficient.

The winners of the $125,000 first prize were a group from MIT and Jain Irrigation Systems. The group came up with a method that uses solar panels to charge a bank of batteries. The batteries then power a system that removes salt from the water through electrodialysis. On the most basic level, that means that dissolved salt particles, which have a slight electric charge, are drawn out of the water when a small electrical current is applied. In addition to getting rid of salt (which makes water unusable for crops and for drinking), the team also applied UV light to disinfect some of the water as it passed through the system.

Using the sun instead of fossil fuels to power a desalination plant isn't a totally new idea. Larger solar desalination plants are being seriously investigated in areas where water is becoming a scarce resource, including Chile and California. While proponents hope to eventually could provide water to large numbers of people, the technology is still expensive (though prices are dropping) and requires a lot of intricate technology.

Here's Why Apple Is Building Solar Farms in China

Apple just agreed to back two large solar farms in China. It’s the biggest deal of its kind for a U.S. company operating in China. For China, the deal is only a beginning. 
China has been installing more renewable-power capacity than fossil fuels for several years, a gap that's growing. In 2015, China will install 15 gigawatts to 18 gw of solar power alone, double the solar deployment in the U.S., according to an analysis by Bloomberg New Energy Finance (BNEF).
The chart shows how, in the next 15 years, China is on track to have more low-carbon electricity than the entire capacity of the U.S. power grid. "Think of what their grid will look like in 2030," Michael Liebreich, founder of BNEF, said at the organization's annual summit last week in New York. "A very competitive advantage."
For Apple, the 40-megawatt partnership extends Chief Executive Officer Tim Cook's solar aspirations beyond U.S. borders. Cook announced an $850 million deal in February to purchase enough solar to power all its California operations: stores, offices, headquarters, and a data center. By making a similar push in China, the tech giant begins to offset its considerable manufacturing pollution, which is almost entirely overseas. 
Many U.S. tech giants—not just Apple—have been criticized for outsourcing their pollution, says Justin Wu, head of Asia research for BNEF. Apple is "hitting back at that whole line of arguments," he says. "This is the beginning of something. Manufacturing in China is going to get greened." 

Toshiba Begins Operation of Independent Energy Supply System Utilizing Renewable Energy and Hydrogen

Toshiba Corporation announced the start of demonstration operation of H2One, an independent energy supply system based on renewable energy and use of hydrogen as a fuel for power generation. Kawasaki City and Toshiba have installed the system at the Kawasaki Marien public facility and Higashi-Ogishima-Naka Park in the Kawasaki Port area.
 
H2One combines photovoltaic installations, storage batteries, hydrogen-producing water electrolysis equipment, hydrogen and water tanks, and fuel cells. Electricity generated from the photovoltaic installations is used to electrolyze water and produce hydrogen, which is then stored in tanks and used in fuel cells that produce electricity and hot water.
 
Since H2One uses only sunlight and water for fuel, it can independently provide electricity and hot water in times of emergency, even when lifelines are cut. Kawasaki Marien and Higashi-Ogishima-Naka Park, a municipal facility to promote Kawasaki Port, is a designated emergency evacuation area. In times of disaster, H2One will use stored hydrogen to provide an estimated 300 evacuees to the site with electricity and hot water for about one week. The H2One system is housed in a container, and can be transported to disaster-hit areas on trailers.

Top 5 Richest Tycoons in Renewable Energy

The growth of the solar industry is truly astounding, particularly in China, the world’s solar leader. Between 2011 and 2012 the Chinese solar market grew by 500 percent. According to a 2014 report by Frost & Sullivan, a consulting firm, the global solar market earned revenues of nearly $60 billion in 2013. The firm estimates that by 2020 it will double to $137.2 billion.
 
With all this growth, somebody was obviously going to get rich, and it didn’t take long for Oilprice.com to identify some of the biggest beneficiaries of the push toward renewables. The following are 5 of the world’s most successful renewable energy business leaders and their net worth.
 
1. Li Hejun, Chairman, Hanenergy Holdings. $31.5 billion. 
2. Elon Musk, Founder/CEO, Space Exploration Technologies Corp., Tesla Motors. $12.2 billion.
3. Wang Chuanfu, Founder, BYD Company. $5.3 billion.
4. Aloys Wobben, Founder/Owner, Enercon. $4.2 billion. 
5. Zhu Gongshan, Chairman, GCL-Poly Energy Holdings. 

The $5 Billion Race to Build a Better Battery

Professor Donald Sadoway remembers chuckling at an e-mail in August 2009 from a woman claiming to represent Bill Gates. The world’s richest man had taken Sadoway’s Introduction to Solid State Chemistry online, the message explained. Gates wondered if he could meet the guy teaching the popular MIT course the next time the billionaire was in the Boston area, Bloomberg Markets magazine will report in its May issue.  “I thought it was a student prank,” says Sadoway, who’s spent more than a decade melting metals in search of a cheap, long-life battery that might wean the world off dirty energy. He’d almost forgotten the note when Gates’s assistant wrote again to plead for a response.
 
A month later, Gates and Sadoway were swapping ideas on curbing climate change in the chemist’s second-story office on the Massachusetts Institute of Technology campus. They discussed progress on batteries to help solar and wind compete with fossil fuels. Gates said to call when Sadoway was ready to start a company. “He agreed to be an angel investor,” Sadoway says. “It would have been tough without that support.”
 

Sadoway is ready. He and a handful of scientists with young companies and big backers say they have a shot at solving a vexing problem: how to store and deliver power around the clock so sustainable energies can become viable alternatives to fossil fuels.  How these storage projects are allowing utility power customers to defect from the grid is one of the topics for debate this week at the Bloomberg New Energy Finance conference in New York. Today’s nickel-cadmium and lithium-ion offerings aren’t up to the task. They can’t run a home for more than a few hours or most cars for more than 100 miles (160 kilometers). At about $400 per kilowatt-hour, they’re double the price analysts say will unleash widespread green power. “Developing a storage system beyond lithium-ion is critical to unlocking the value of electric vehicles and renewable energy,” says Andrew Chung, a partner at Menlo Park, California–based venture capital firm Khosla Ventures.

In The Midst Of Toxic Oil Spill, Vancouver Announces It Will Go 100 Percent Renewable

There’s some mixed news coming out of Vancouver, Canada this week. On the one hand, the city announced at an international sustainability summit that it would commit to using 100 percent renewable energy to power its electricity, transportation, heating and air conditioning within 20 years. On the other hand, Vancouver is also dealing with a fuel spill in the waters of English Bay that is washing up on beaches and threatening wildlife.
On March 26, Vancouver’s city council voted unanimously to approve Mayor Gregor Robertson motion calling for a long-term commitment to deriving all of the city’s energy from renewable sources. At the ICLEI World Congress 2015 this week in Seoul, South Korea, the city went a step further, committing to reaching that goal of 100 percent renewable electricity, transportation, heating and air conditioning by 2030 or 2035.
Right now, Vancouver gets 32 percent of its energy — that includes electricity, transportation, heating, and cooling — from renewable sources, so the goal is ambitious, but not impossible. According to the Guardian, Vancouver could get all of its electricity from renewables within a few years, but transportation, heating, and cooling may prove more difficult.

Wind Power Creates 30,000 Texas Jobs, Generates $85 million in Taxes

The boom in West Texas wind-powered electricity generation has delivered a major economic boost to the region, including creation of over 40 new businesses and 30,000 construction jobs in 57 West Texas counties since 2001, according to data collected by Public Citizen’s Texas office.
 
The 40 new manufacturers and businesses make everything from wind turbine blades and steel towers to electronics, according to the data. Wind farms also generate over $85 million in taxes annually in rural Texas counties and more than $9 billion in new taxable assets in the last 14 years.
 
Over a five-month period in 2014 and 2015, Public Citizen’s Texas office collected data on the economic impact of wind development from county appraisers and tax assessors in the 57 West Texas counties. The data includes estimates of investment values, employment, tax revenues, and lease payments by wind farms, and it reflects review of previous research and case studies.

As California Faces Record Drought Levels, Wind Energy Provides A Vital Service

In 2014, wind energy saved 2.5 billion gallons of water in California by displacing water consumption at the state's fossil-fired power plants, playing a valuable role in alleviating the state's record drought. Wind energy's annual water savings work out to around 65 gallons per person in the state - or the equivalent of 20 billion bottles of water, according to the American Wind Energy Association (AWEA).
 
According to AWEA, one of wind energy's most overlooked benefits is that it requires virtually no water to produce electricity while almost all other electricity sources evaporate tremendous amounts of water.
 
In California - where the state is combating record drought levels - Gov. Jerry Brown recently signed an executive order to reduce household water consumption by 25%, from about 140 gallons per day per household to 105 gallons. Wind energy's water savings are, therefore, equivalent to what would be saved by nearly one week's worth of the required reductions for a typical household.
 
In 2008, U.S. thermal power plants withdrew 22 trillion to 62 trillion gallons of freshwater from rivers, lakes, streams and aquifers and consumed 1 trillion to 2 trillion gallons. By displacing generation from these conventional power plants, U.S. wind energy currently saves around 35 billion gallons of water per year - the equivalent of 120 gallons per person or 285 billion bottles of water.

Obama wants to train 75,000 new solar workers by 2020

President Obama launch a new initiative to expand the nation’s solar industry workforce during a visit to Utah’s Hill Air Force Base on Friday, seeking to gain support for his economic agenda in a heavily-Republican state.
 
The Energy Department will seek to train 75,000 people — including veterans — to enter the solar workforce by 2020, increasing the goal it set in May 2014 by 25,000.
 
“We’ve got to be relentless in our work to grow the economy and create good jobs,” Obama said after touring the brief tour, adding that other nations are seeking to expand their economies as well. “And that’s why we have to redouble our efforts to make sure that we’re competitive, to make sure that we’re taking the steps that are needed for us to be successful.”

Tesla's New Product Secretly Tested By 330 Consumers

From Benzinga: Global Equities Research analyst Trip Chowdhry has revealed some interesting information about Tesla Motors Inc 's new product line.
 
Outside of the fact that it will not be a car, very little is known about what Tesla plans to announce. Some experts think it could be a motorcycle. Others assume that it will be an in-home battery that involves solar energy.
 
If Chowdhry's information is correct, it seems that Tesla is ready to launch the latter.
 
In a note to investors, Chowdhry said that he knows of two people that own a residential battery from Tesla. He spoke to one of those owners and detailed the following bullet points:
 
  • "There are about 230 Households in California, who currently have Tesla Stationary Battery installed in their Homes. Another about 100 Households are out of California.
  • This customer had the Tesla Stationary Battery for about One and a Half years, and is installed in his garage."
Last year, Chowdhry attended a sustainability conference and learned that Google Inc is "widely believed" to have a few Tesla (commercial-grade) batteries in some of its buildings. Apple Inc. might also purchase some of these batteries for its new campus.
 
Chowdhry believes that Tesla's commercial-grade batteries are rated at more than 400 kWh.

Subpar Solar Irradiance Undermines East Coast Project Performance

The East Coast of the U.S. experienced up to 5% lower than average levels of solar irradiance in 2014, negatively impacting overall performance of solar sites in the region. Concurrently, the West Coast enjoyed irradiance levels up to 10% higher than average, widening the productivity gap between projects in the country's two areas of highest solar development.  
 
This disparity is clearly seen in the 2014 Solar Performance Maps of the United States, released today by Vaisala, a global leader in environmental and industrial measurement. 
 
While it is well-established that the solar resource of the East does not match that of the West, the Atlantic Coast has a large volume of operational capacity and it is therefore of critical importance for project operators in the region to understand the reasons behind below average energy output and whether it is due to malfunctioning equipment or weather variability. 
 
Vaisala's 2014 study illustrates the impact of short-term, month-to-month weather variations on performance at U.S. solar projects and places them into a long-term context. This reveals frequent and significant deviations from long-term average irradiance conditions and highlights the clear requirement to analyze the effect of solar resource variability on both over and underperformance.
 
From an annual perspective, this year's weather patterns had an adverse effect on a large number of installations along the Atlantic Coast from Florida to Massachusetts, as well as Texas, while the bulk of projects in California and the Southwest saw an uptick in solar irradiance that may have increased overall 2014 production at many sites. 
 
However, these annual variations only offer a high-level view of project performance. Vaisala also conducted a monthly analysis that gives a much more robust understanding of how specific weather conditions affected solar production throughout the year. 
 

CloudSolar Helps Renewable Energy Fans Who Can't Install Their Own Solar Panels

Catherine Shu for TechCrunch:  Solar panels are becoming increasingly affordable, but many people still face barriers to harnessing the power of the sun for their own homes. For example, they might live in an apartment or in a house where the roof is angled or structured improperly for solar panel installation.
 
A new Boston-based startup called CloudSolar is offering an intriguing solution. Founded by a team including two electrical engineering Ph.D. candidates and currently raising funds on Indiegogo, CloudSolar lets people buy a solar panel, or a share in one, on a farm that is expected to be completed by 2016 (erecting the solar panels will only take a couple of months, but the company also has to deal with utility and land permits, which will take longer).
 
Once the farm is up and operating, electricity generated by the solar panels will be sold to local utilities. Solar panel owners are promised 80 percent of the total proceeds created by the panels over the next 25 years, and help with applying for whatever tax credits they are eligible for. They can monitor how much energy their panel is producing, and how much carbon dioxide emissions it is estimated to offset, through an app.

These States Are the Early Leaders in the US Energy Storage Market

Eric Wesoff for GreenTech Media:  Energy storage is a small market experiencing fierce growth. The U.S. installed 61.9 megawatts of energy storage in 2014, and GTM Research is forecasting 220 megawatts to be installed in 2015. But, as with the U.S. solar industry, energy storage projects are clustered in states with incentives or in regions where markets are able to place a value on storage. 
 
So it's no surprise that California, Hawaii, and New York have assumed early leadership in energy storage by virtue of their unique incentives, mandates and markets, according to the inaugural GTM Research and Energy Storage Association U.S. Energy Storage Monitor report.  Cont'd...

See-Through Solar Is Tomorrow's Threat to Oil

The engineers at Ubiquitous Energy are developing solar panels that are completely transparent and as thin as a laminate. They can do this by creating see-through solar cells that absorb only the invisible parts of the solar spectrum—ultraviolet and infrared radiation.

The technology still has a way to go because the cells must become more efficient to prove cost-effective, but their promise is big: solar cells that could become a part of any glass or plastic surface. They could sit, invisibly, atop a smartphone’s display, allowing the phone to charge itself under natural or artificial light. And if the process became part of glass and window manufacturing, homes and skyscrapers could draw power from the sun without the spatial and aesthetic limits of current, opaque solar panels.

US Energy Storage Market Could Triple This Year

The energy storage market is poised for substantial growth over the next five years, with installed capacity this year expected to more than triple to 220 MW from last year’s 62 MW.
 
A recent report from GTM Research and the Energy Storage Association, ‘U.S. Energy Storage Monitor,’ projected that the market will grow from $128 million last year to $1.5 billion by 2019, when more than 800 MW will be installed.
 
Moreover, non-utility storage – residential and non-residential – will grow from just 10% of installed capacity last year to 45% over the same period.
 
This is a bullish forecast for downstream residential vendors identified in the report, such as Schneider Electric, Outback Power, Sunverge, and Solar City.

Records 256 to 270 of 1166

First | Previous | Next | Last

Featured Product

Sun Bandit - Solar Hybrid Energy Systems

Sun Bandit - Solar Hybrid Energy Systems

Sun Bandit® is a revolutionary new way in which solar is used to heat water. This innovative new technology utilizes PV technology to deliver clean, reliable hot water by putting the free energy of the sun to work for you in ways that makes owning a solar system more practical and affordable than ever before. Achieving energy independence has never been easier than with a Sun Bandit® Solar Hybrid Energy System. Sun Bandit® patented technologies eliminates the need for complex solar mechanical water heating and replaces it with clean, simple to install and easy to enjoy PV technology to effectively and efficiently provide hot water. With advance micro grid technology and design, Sun Bandit® can deliver hot water even when the grid goes down. Sun Bandit® is the simplest solar hot water solution on the market, providing the most easy-to-use and economical way to go solar.